Question

A purveyor of designer maternity wear sells dresses and pants priced around $200 each for an average total sale of
$ 1400 . The total sale has a normal distribution with a standard deviation of $ 300 . Complete parts a through c below.
a. Calculate the probability that a randomly selected customer will have a total sale of more than $1,700.
The probability is .---------
(Round to four decimal places as needed.)
b. Compute the probability that the total sale will be within ± 2.5 standard deviations of the mean total sales.
The probability is .--------
(Round to four decimal places as needed.)
c. Determine the median total sale.
The median total sale is $ --------.
(Type an integer or a decimal.)

Answer 1